Re: [Teas] "Hierarchical T-SDN Controller"
"Scharf, Michael (Nokia - DE/Stuttgart)" <michael.scharf@nokia.com> Thu, 20 July 2017 07:03 UTC
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From: "Scharf, Michael (Nokia - DE/Stuttgart)" <michael.scharf@nokia.com>
To: Loa Andersson <loa@pi.nu>, "teas@ietf.org" <teas@ietf.org>
Thread-Topic: [Teas] "Hierarchical T-SDN Controller"
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Date: Thu, 20 Jul 2017 07:03:40 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/teas/ZdZVs4zeCrxIeQFs8ZuKsH4QhQ4>
Subject: Re: [Teas] "Hierarchical T-SDN Controller"
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I have done a litmus test by entering ... Software Defined Transport Network (SDTN) Controller in some Web search engine. I have repeated the same experiment for ... Physical Network Controller The experiment outcome looks relatively clear to me, but of course I may be opinionated. Michael PS: I will certainly not insist in the specific term "transport network". > -----Original Message----- > From: Loa Andersson [mailto:loa@pi.nu] > Sent: Thursday, July 20, 2017 7:03 AM > To: teas@ietf.org; Scharf, Michael (Nokia - DE/Stuttgart) > <michael.scharf@nokia.com> > Subject: Re: [Teas] "Hierarchical T-SDN Controller" > > Michael, > > Are you saying that making this Software Defined Transport Network > (SDTN) Controller would be acceptable? > > /Loa > > On 2017-07-19 11:02, Scharf, Michael (Nokia - DE/Stuttgart) wrote: > > As a chair in TSV, I can confirm that “transport” is used for L4 “stuff”. > > > > > > > > As far as I can tell, the term “transport network” is not used for L4 > > “stuff”. > > > > > > > > Michael > > > > > > > > > > > > > > > > *From:* Jeff Tantsura [mailto:jefftant.ietf@gmail.com] > > *Sent:* Wednesday, July 19, 2017 10:58 AM > > *To:* Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>; Scharf, > > Michael (Nokia - DE/Stuttgart) <michael.scharf@nokia.com>; TEAS WG > > <teas@ietf.org> > > *Subject:* Re: [Teas] "Hierarchical T-SDN Controller" > > > > > > > > dealing with this on daily bases, outside of our, rather small world, > > transport is commonly understood as L4 “stuff” > > > > > > > > Cheers, > > > > Jeff > > > > > > > > *From: *Teas <teas-bounces@ietf.org <mailto:teas-bounces@ietf.org>> > on > > behalf of Daniele Ceccarelli <daniele.ceccarelli@ericsson.com > > <mailto:daniele.ceccarelli@ericsson.com>> > > *Date: *Wednesday, July 19, 2017 at 10:49 > > *To: *"Scharf, Michael (Nokia - DE/Stuttgart)" > > <michael.scharf@nokia.com <mailto:michael.scharf@nokia.com>>, TEAS > WG > > <teas@ietf.org <mailto:teas@ietf.org>> > > *Subject: *Re: [Teas] "Hierarchical T-SDN Controller" > > > > > > > > And on that i totally agree with you. > > > > > > > > …and yes, on the netslices mailing list I was reprimanded by the > > transport ADs for using the term transport for non layer 4 stuff 😊 > > > > > > > > BR > > Daniele > > > > > > > > *From:* Teas [mailto:teas-bounces@ietf.org] *On Behalf Of *Scharf, > > Michael (Nokia - DE/Stuttgart) > > *Sent:* mercoledì 19 luglio 2017 10:41 > > *To:* Daniele Ceccarelli <daniele.ceccarelli@ericsson.com > > <mailto:daniele.ceccarelli@ericsson.com>>; TEAS WG <teas@ietf.org > > <mailto:teas@ietf.org>> > > *Subject:* Re: [Teas] "Hierarchical T-SDN Controller" > > > > > > > > Well, the IETF has an area called “TSV” and so in the IETF “transport” > > has yet another meaning ;-) > > > > > > > > Given that, such terminology would have to be defined in IETF > > documents anyway. A definition of these terms could clarify the > > meaning for MPLS-TE and SR-TE. > > > > > > > > Anyway, my key point is that I think the terminology used by > > draft-bryskin-te-topo-and-tunnel-modeling-00 is easy to understand by > > people outside the IETF. > > > > > > > > Michael > > > > > > > > > > > > > > > > *From:* Daniele Ceccarelli [mailto:daniele.ceccarelli@ericsson.com] > > *Sent:* Wednesday, July 19, 2017 10:28 AM > > *To:* Scharf, Michael (Nokia - DE/Stuttgart) <michael.scharf@nokia.com > > <mailto:michael.scharf@nokia.com>>; TEAS WG <teas@ietf.org > > <mailto:teas@ietf.org>> > > *Subject:* RE: "Hierarchical T-SDN Controller" > > > > > > > > +1 , BUT… > > > > > > > > We need to be careful with the word “transport”. In some contexts it > > refers to pure transport technologies (e.g. OTN, WDM) and does not > > include other upper layer TE technologies (e.g. MPLS-TE and SR-TE), in > > other contexts it includes also the latter. > > I’m more than happy to use the term transport SDN controller provided > > we’re all on the same page (which should be the second). > > > > > > > > BR > > Daniele > > > > > > > > > > > > > > > > *From:* Teas [mailto:teas-bounces@ietf.org] *On Behalf Of *Scharf, > > Michael (Nokia - DE/Stuttgart) > > *Sent:* mercoledì 19 luglio 2017 10:01 > > *To:* TEAS WG <teas@ietf.org <mailto:teas@ietf.org>> > > *Subject:* [Teas] "Hierarchical T-SDN Controller" > > > > > > > > In the (useful) I-D draft-bryskin-te-topo-and-tunnel-modeling-00, > > Section 1.9. “Multi-Domain Transport Service Coordination” uses the > > following wording: > > > > > > > > A client of multiple TE network domains may need to > > > > orchestrate/coordinate its transport service setup/manipulation > > > > across some or all the domains. One example of such a client is a > > > > Hierarchical T-SDN Controller, HC, managing a connected > > multi-domain > > > > transport network where each of the domains is controlled by a > > > > separate Domain T-SDN Controller, DC. > > > > > > > > Outside the IETF, I have the impression that this terminology is quite > > common when discussing TEAS YANG models. I wonder whether we could > use > > this terminology more frequently inside in TEAS. > > > > > > > > Michael > > > > _______________________________________________ Teas mailing > list > > Teas@ietf.org <mailto:Teas@ietf.org> > > https://www.ietf.org/mailman/listinfo/teas > > > > > > > > _______________________________________________ > > Teas mailing list > > Teas@ietf.org > > https://www.ietf.org/mailman/listinfo/teas > > > > -- > > > Loa Andersson email: loa@mail01.huawei.com > Senior MPLS Expert loa@pi.nu > Huawei Technologies (consultant) phone: +46 739 81 21 64
- [Teas] "Hierarchical T-SDN Controller" Scharf, Michael (Nokia - DE/Stuttgart)
- Re: [Teas] "Hierarchical T-SDN Controller" Daniele Ceccarelli
- Re: [Teas] "Hierarchical T-SDN Controller" Scharf, Michael (Nokia - DE/Stuttgart)
- Re: [Teas] "Hierarchical T-SDN Controller" Scharf, Michael (Nokia - DE/Stuttgart)
- Re: [Teas] "Hierarchical T-SDN Controller" Daniele Ceccarelli
- Re: [Teas] "Hierarchical T-SDN Controller" Jeff Tantsura
- [Teas] 答复: "Hierarchical T-SDN Controller" Fatai Zhang
- Re: [Teas] "Hierarchical T-SDN Controller" Lou Berger
- Re: [Teas] "Hierarchical T-SDN Controller" Scharf, Michael (Nokia - DE/Stuttgart)
- Re: [Teas] "Hierarchical T-SDN Controller" Daniele Ceccarelli
- Re: [Teas] "Hierarchical T-SDN Controller" Daniele Ceccarelli
- Re: [Teas] "Hierarchical T-SDN Controller" Igor Bryskin
- Re: [Teas] "Hierarchical T-SDN Controller" Loa Andersson
- Re: [Teas] "Hierarchical T-SDN Controller" Scharf, Michael (Nokia - DE/Stuttgart)